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Test chamber capable of simulating mechanical property of test piece under freezing and thawing temperature load

A test box and test piece technology, applied in the field of mechanical performance test, can solve problems such as inability to carry out real-time, engineering practical application errors, and inaccurate test results, so as to improve efficiency, convenience, and accuracy

Inactive Publication Date: 2019-08-06
SICHUAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, the method of carrying out the fatigue test on the concrete member in the freeze-thaw state is mainly to carry out the freeze-thaw cycle on the concrete member, after completing the predetermined number of freeze-thaw cycles, then take out the member, place it on the fatigue testing device, and carry out the fatigue test; then The components are naturally thawed, the temperature rises above zero, and then the fatigue test is carried out. This method can only realize the fatigue test of the concrete components after freezing and thawing, and cannot be carried out in real time. error

Method used

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  • Test chamber capable of simulating mechanical property of test piece under freezing and thawing temperature load
  • Test chamber capable of simulating mechanical property of test piece under freezing and thawing temperature load
  • Test chamber capable of simulating mechanical property of test piece under freezing and thawing temperature load

Examples

Experimental program
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Effect test

Embodiment 1

[0037] In this example, if figure 1 Shown, a kind of test chamber that can simulate the mechanical performance of the test piece under the freeze-thaw temperature includes a box body 1, and the test chamber includes a temperature control system, a stress loading system and an environment simulation system for simulating a real environment; the temperature The control system includes a refrigeration device and a heating device, both of which are located on the inner wall of the box body 1; the stress loading system is located on the top of the box body 1 and the stress loading system includes a stress loading device 3 and a fixed end of the test piece 4. The stress loading device 3 is located outside the top of the box body 1 , and the fixed end 4 of the specimen is fixed to the stress loading device 3 and extends to the inside of the box body 1 .

[0038] When implementing the test box proposed in Example 1, the temperature control system controls the inside of the box body 1 ...

Embodiment 2

[0040] In this example, if figure 1 Shown, a kind of test chamber that can simulate the mechanical performance of the test piece under the freeze-thaw temperature includes a box body 1, and the test chamber includes a temperature control system, a stress loading system and an environment simulation system for simulating a real environment; the temperature The control system includes a refrigeration device and a heating device, both of which are located on the inner wall of the box body 1; the stress loading system is located on the top of the box body 1 and the stress loading system includes a stress loading device 3 and a fixed end of the test piece 4. The stress loading device 3 is located outside the top of the box body 1 , and the fixed end 4 of the specimen is fixed to the stress loading device 3 and extends to the inside of the box body 1 .

[0041] The environment simulation system includes a humidity control device, an environment control device 12, a rainfall simulati...

Embodiment 3

[0045] In embodiment 3, the test chamber in embodiment 3 is improved on the basis of embodiment 2, and described humidity control system comprises atomizing device 10 and blast drying device 11, and described atomizing device 10 and blast drying The devices 11 are all fixed on the bottom of the outside of the box body 1, and the atomization device 10 and the blast drying device 11 are respectively connected to the inside of the box body 1 through pipelines; the bottom of the box body 1 is provided with an air convection hole 13; Through the atomization device 10, the atomized liquid is passed into the inside of the box body 1, thereby increasing the humidity inside the box body 1, and the drying gas is passed into the inside of the box body 1 through the blast drying device 11, thereby reducing the humidity of the box body 1. The internal humidity, and then through the atomizing device 10 and the blast drying device 11, the humidity inside the box body 1 can be adjusted in a ti...

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Abstract

The invention discloses a test chamber capable of simulating a mechanical property of a test piece under a freezing and thawing temperature. The test chamber comprises a chamber body. The test chamberincludes a temperature control system, a stress loading system, and an environmental simulation system. The temperature control system comprises a refrigeration device and a heating device. The refrigeration device and the heating device are located on an inner wall of the chamber body. The stress loading system is located at a top of the chamber body and the stress loading system includes a stress loading device and a test piece fixed end. The stress loading device is located outside the top of the chamber body, and the test piece fixed end is fixed to the stress loading device and is extended into the chamber body. Through the test chamber, the mechanical property of the test under a freezing and thawing temperature load can be tested, accuracy of a test result is ensured and an error is reduced through adjusting and simulating the mechanical property tests under high and low temperatures, different humidity, rainfall and illumination or different environmental states.

Description

technical field [0001] The invention relates to the field of mechanical property tests, in particular to a test chamber capable of simulating the mechanical properties of test pieces under freeze-thaw temperature loads. Background technique [0002] Freezing and thawing refers to a physical geological action and phenomenon in which the soil layer freezes and thaws when the temperature drops below zero and rises above zero. Most of our country belongs to the type of seasonal frozen soil, which freezes in winter and melts in summer, and the ice exerts huge pressure on the two walls of rock cracks; when the temperature rises, the ice melts, the pressure on the two walls drops sharply, and the two walls move toward the center. push back. In the process of repeated freezing and thawing, the cracks in the rock will expand and increase, so that the stones will be separated. This effect is called freezing and thawing. [0003] However, various components in the freeze-thaw environ...

Claims

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Application Information

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IPC IPC(8): G01N3/02
CPCG01N3/02G01N2203/0017G01N2203/0019G01N2203/0044G01N2203/0048G01N2203/0226G01N2203/0228G01N2203/0236
Inventor 董江峰贾璞李诗娴李浪王清远
Owner SICHUAN UNIV
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